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2
RESULTS

Media Type
2
texts
Topics & Subjects
2
Letter mail handling.
1
Letter services.
1
Mail sorting--Maryland--Baltimore.
Collection
2
American Libraries
2
FEDLINK - United States Federal Collection
2
National Institute of Standards and Technology Research Library
2
NBS/NIST Technical Notes
Creator
1
levin, b. m. (bernard martin), 1930-; newman, arthur e.
1
severo, norman c.
Language
2
English
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